Use of zinc derivatives as cyclic ester polymerization catalysts
    4.
    发明授权
    Use of zinc derivatives as cyclic ester polymerization catalysts 有权
    使用锌衍生物作为环酯聚合催化剂

    公开(公告)号:US07169729B2

    公开(公告)日:2007-01-30

    申请号:US10474617

    申请日:2002-04-09

    IPC分类号: C08F4/06

    CPC分类号: C08G63/823

    摘要: The invention concerns the use of zinc derivatives of general formula (I) wherein: L1 represents a group of formula: —E14(R14)(R′14)(R″14), —E15(R15) (R′15) or —E16(R16); E is an atom of group 15; L2 and L3 independently represent a group of formula: —E14(R14)(R′14)(R″14), —E15(R15)(R′15) or —E16(R16), or together form a chain of formula —L′2—A—L′3—; A represents a saturated or unsaturated chain comprising one, two or three elements of group 14; L′2 and L′3 independently represent a group of formula —E14(R14)(R′14) —E15(R15) or —E16—; E14 is an element of group 14; E15 is an element of group 15; E16 is an element of group 16; R14, R′14, R″14, R15, R′15 and R16 represent various groups, as (co) polymerisation catalysts of cyclic esters

    摘要翻译: 本发明涉及通式(I)的锌衍生物的用途,其中:L 1表示下列基团:-E 14(R 14) (R“14”)(R“14”),-E 15(R 15)(R 15) (R 16)或-E 16(R 16)。 E是组15的原子; L 2和L 3独立地表示下式的基团:-E 14(R 14)(R 14) (R“14”),-E 15(R 15)(R 15) 15)或-E 16(R 16),或一起形成式-L'2 -A- L'3 - ; A表示饱和或不饱和链,其包含第14族的一个,两个或三个元素; L'2和L'3个独立地表示式-E 14(R 14)(R 14) - 15 15(15)或-E 16 - - (15)15。 E 14是组14的元素; E 15是组15的元素; E 16是组16的元素; R 14,R 14,R“14,R 15,R 15, / SUB和R 16表示作为环状酯的(共)聚合催化剂的各种基团